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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 682 (Engine Mechanical - 8.1L (Unit Repair)) >> Repair Instructions >> Exhaust Manifold Removal-Right (Medium Duty)

Exhaust Manifold Removal-Right (Medium Duty)

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Important:  Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire.

  1. Remove the right spark plug wires from the spark plugs and ignition coils.
    Fig 1: Right Spark Plug Wires (Medium Duty)
    G01675320Courtesy of GENERAL MOTORS CORP.
  2. Remove the exhaust gas recirculation (EGR) pipe bolts from the EGR adapter.
  3. Remove the EGR pipe nuts from the right exhaust manifold.
  4. Remove the EGR pipe bracket bolt.
  5. Remove the EGR pipe and gaskets.
    Fig 2: EGR Pipe & Gasket (Medium Duty)
    G01675321Courtesy of GENERAL MOTORS CORP.
  6. Remove the right exhaust manifold heat shield nuts.
  7. Remove the right exhaust manifold heat shield.
    Fig 3: Right Exhaust Manifold Heat Shield & Nuts (Medium Duty)
    G01675322Courtesy of GENERAL MOTORS CORP.
  8. Remove the right exhaust manifold nuts and center bolt.
  9. Remove the right exhaust manifold.
  10. Remove the right exhaust manifold gasket.
    Fig 4: Right Exhaust Manifold & Gasket (Medium Duty)
    G01675323Courtesy of GENERAL MOTORS CORP.
  11. Remove the right spark plugs.
    Fig 5: Right Spark Plug (Medium Duty)
    G01675324Courtesy of GENERAL MOTORS CORP.
  12. Remove the exhaust manifold studs, if necessary.
    Fig 6: Exhaust Manifold Studs (Medium Duty)
    G01675325Courtesy of GENERAL MOTORS CORP.